Publish a single hello world debug message to topic:

• `./pubbing pub --project= --topic=

Subscribe to messages and give verbose output:

• ./pubbing sub --project=<project> --topic=<topic> --sub=<subname> --num=1000 --log=debug
• Log level debug will write the messages to stdout
• Log level info is meant to test performance and will print subscription speed metrics

Publish messages from LegendaryGopher Figures API to a topic

• ./pubbing gopherpump --project=<project> --topic=<topic> --num=20000 --batch=1000